Intuitive tactile zooming for graphics accessed by individuals who are blind and visually impaired.
Identifieur interne : 000869 ( PubMed/Checkpoint ); précédent : 000868; suivant : 000870Intuitive tactile zooming for graphics accessed by individuals who are blind and visually impaired.
Auteurs : Ravi Rastogi [États-Unis] ; T V Dianne Pawluk ; Jessica KetchumSource :
- IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society [ 1558-0210 ] ; 2013.
English descriptors
- KwdEn :
- Adult, Algorithms, Blindness (psychology), Computer Graphics, Female, Form Perception (physiology), Humans, Linear Models, Male, Middle Aged, Physical Stimulation, Psychomotor Performance (physiology), Sensory Aids, Touch (physiology), User-Computer Interface, Visually Impaired Persons (psychology).
- MESH :
- physiology : Form Perception, Psychomotor Performance, Touch.
- psychology : Blindness, Visually Impaired Persons.
- Adult, Algorithms, Computer Graphics, Female, Humans, Linear Models, Male, Middle Aged, Physical Stimulation, Sensory Aids, User-Computer Interface.
Abstract
One possibility of providing access to visual graphics for those who are visually impaired is to present them tactually: unfortunately, details easily available to vision need to be magnified to be accessible through touch. For this, we propose an "intuitive" zooming algorithm to solve potential problems with directly applying visual zooming techniques to haptic displays that sense the current location of a user on a virtual diagram with a position sensor and, then, provide the appropriate local information either through force or tactile feedback. Our technique works by determining and then traversing the levels of an object tree hierarchy of a diagram. In this manner, the zoom steps adjust to the content to be viewed, avoid clipping and do not zoom when no object is present. The algorithm was tested using a small, "mouse-like" display with tactile feedback on pictures representing houses in a community and boats on a lake. We asked the users to answer questions related to details in the pictures. Comparing our technique to linear and logarithmic step zooming, we found a significant increase in the correctness of the responses (odds ratios of 2.64:1 and 2.31:1, respectively) and usability (differences of 36% and 19%, respectively) using our "intuitive" zooming technique.
DOI: 10.1109/TNSRE.2013.2250520
PubMed: 23529106
Affiliations:
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For this, we propose an "intuitive" zooming algorithm to solve potential problems with directly applying visual zooming techniques to haptic displays that sense the current location of a user on a virtual diagram with a position sensor and, then, provide the appropriate local information either through force or tactile feedback. Our technique works by determining and then traversing the levels of an object tree hierarchy of a diagram. In this manner, the zoom steps adjust to the content to be viewed, avoid clipping and do not zoom when no object is present. The algorithm was tested using a small, "mouse-like" display with tactile feedback on pictures representing houses in a community and boats on a lake. We asked the users to answer questions related to details in the pictures. Comparing our technique to linear and logarithmic step zooming, we found a significant increase in the correctness of the responses (odds ratios of 2.64:1 and 2.31:1, respectively) and usability (differences of 36% and 19%, respectively) using our "intuitive" zooming technique.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">23529106</PMID><DateCreated><Year>2013</Year><Month>07</Month><Day>12</Day></DateCreated><DateCompleted><Year>2014</Year><Month>02</Month><Day>12</Day></DateCompleted><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1558-0210</ISSN><JournalIssue CitedMedium="Internet"><Volume>21</Volume><Issue>4</Issue><PubDate><Year>2013</Year><Month>Jul</Month></PubDate></JournalIssue><Title>IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society</Title><ISOAbbreviation>IEEE Trans Neural Syst Rehabil Eng</ISOAbbreviation></Journal><ArticleTitle>Intuitive tactile zooming for graphics accessed by individuals who are blind and visually impaired.</ArticleTitle><Pagination><MedlinePgn>655-63</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1109/TNSRE.2013.2250520</ELocationID><Abstract><AbstractText>One possibility of providing access to visual graphics for those who are visually impaired is to present them tactually: unfortunately, details easily available to vision need to be magnified to be accessible through touch. For this, we propose an "intuitive" zooming algorithm to solve potential problems with directly applying visual zooming techniques to haptic displays that sense the current location of a user on a virtual diagram with a position sensor and, then, provide the appropriate local information either through force or tactile feedback. Our technique works by determining and then traversing the levels of an object tree hierarchy of a diagram. In this manner, the zoom steps adjust to the content to be viewed, avoid clipping and do not zoom when no object is present. The algorithm was tested using a small, "mouse-like" display with tactile feedback on pictures representing houses in a community and boats on a lake. We asked the users to answer questions related to details in the pictures. Comparing our technique to linear and logarithmic step zooming, we found a significant increase in the correctness of the responses (odds ratios of 2.64:1 and 2.31:1, respectively) and usability (differences of 36% and 19%, respectively) using our "intuitive" zooming technique.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Rastogi</LastName><ForeName>Ravi</ForeName><Initials>R</Initials><AffiliationInfo><Affiliation>Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, VA 23228 USA.: rastogir@vcu.edu</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Pawluk</LastName><ForeName>T V Dianne</ForeName><Initials>TV</Initials></Author><Author ValidYN="Y"><LastName>Ketchum</LastName><ForeName>Jessica</ForeName><Initials>J</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013486">Research Support, U.S. Gov't, Non-P.H.S.</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2013</Year><Month>03</Month><Day>18</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>IEEE Trans Neural Syst Rehabil Eng</MedlineTA><NlmUniqueID>101097023</NlmUniqueID><ISSNLinking>1534-4320</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName MajorTopicYN="N" UI="D000328">Adult</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D000465">Algorithms</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D001766">Blindness</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000523">psychology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="Y" UI="D003196">Computer Graphics</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D005260">Female</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D005556">Form Perception</DescriptorName><QualifierName MajorTopicYN="N" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D006801">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D016014">Linear Models</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D008297">Male</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D008875">Middle Aged</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D010812">Physical Stimulation</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D011597">Psychomotor Performance</DescriptorName><QualifierName MajorTopicYN="N" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="Y" UI="D012682">Sensory Aids</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D014110">Touch</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D014584">User-Computer Interface</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D019987">Visually Impaired Persons</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000523">psychology</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="aheadofprint"><Year>2013</Year><Month>3</Month><Day>18</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2013</Year><Month>3</Month><Day>27</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2013</Year><Month>3</Month><Day>27</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2014</Year><Month>2</Month><Day>13</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="doi">10.1109/TNSRE.2013.2250520</ArticleId><ArticleId IdType="pubmed">23529106</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>États-Unis</li></country><region><li>Virginie</li></region></list><tree><noCountry><name sortKey="Ketchum, Jessica" sort="Ketchum, Jessica" uniqKey="Ketchum J" first="Jessica" last="Ketchum">Jessica Ketchum</name><name sortKey="Pawluk, T V Dianne" sort="Pawluk, T V Dianne" uniqKey="Pawluk T" first="T V Dianne" last="Pawluk">T V Dianne Pawluk</name></noCountry><country name="États-Unis"><region name="Virginie"><name sortKey="Rastogi, Ravi" sort="Rastogi, Ravi" uniqKey="Rastogi R" first="Ravi" last="Rastogi">Ravi Rastogi</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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